diff --git a/package-lock.json b/package-lock.json
index 041bf11..7f33dbb 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,6 +9,7 @@
       "version": "1.5.0",
       "license": "MIT",
       "dependencies": {
+        "@pokujs/dom": "^1.3.0",
         "@testing-library/dom": "^10.4.1"
       },
       "devDependencies": {
@@ -857,9 +858,9 @@
       }
     },
     "node_modules/@pokujs/dom": {
-      "version": "1.3.0",
-      "resolved": "https://registry.npmjs.org/@pokujs/dom/-/dom-1.3.0.tgz",
-      "integrity": "sha512-O7aZdRoeq0FrU5uSIVSA10/pHtVpedmkkVggi3qooGCU8+5SGzAFKYRzlwCwAr3gQjdaU34JqVflNgPmz61JGw==",
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/@pokujs/dom/-/dom-1.3.1.tgz",
+      "integrity": "sha512-ge4Lxx5tLUiiugftvD7Qk6HEPnoY/IRXJ5uOTFLxyEvog2q1wqCUQNLznIA3uvaEjoH+fPwOZgHX3nPqQkrzQg==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
diff --git a/package.json b/package.json
index 0e340a4..d69681c 100644
--- a/package.json
+++ b/package.json
@@ -79,6 +79,7 @@
     "provenance": true
   },
   "dependencies": {
+    "@pokujs/dom": "^1.3.0",
     "@testing-library/dom": "^10.4.1"
   },
   "peerDependencies": {
@@ -100,7 +101,7 @@
       "optional": true
     }
   },
-  "devDependencies": {
+"devDependencies": {
     "@happy-dom/global-registrator": "^20.8.9",
     "@ianvs/prettier-plugin-sort-imports": "^4.7.0",
     "@pokujs/dom": "^1.3.0",
diff --git a/tests/plugin-command.test.ts b/tests/plugin-command.test.ts
index a9f6afc..10fa327 100644
--- a/tests/plugin-command.test.ts
+++ b/tests/plugin-command.test.ts
@@ -59,6 +59,23 @@ test('buildRunnerCommand injects deno preload and avoids duplicates', async () =
   ]);
 });
 
+test('buildRunnerCommand injects --preload for Bun (not --import)', async () => {
+  const result = buildRunnerCommand({
+    runtime: 'bun',
+    command: ['bun', 'tests/example.test.tsx'],
+    file: 'tests/example.test.tsx',
+    domSetupPath: '/tmp/react-dom-setup.ts',
+    runtimeOptionArgs: [],
+  });
+
+  assert.strictEqual(result.shouldHandle, true);
+  assert.deepStrictEqual(result.command, [
+    'bun',
+    '--preload /tmp/react-dom-setup.ts',
+    'tests/example.test.tsx',
+  ]);
+});
+
 test('buildRunnerCommand leaves unsupported runtime unchanged', async () => {
   const original = ['python', 'tests/example.test.tsx'];
   const result = buildRunnerCommand({
diff --git a/tests/plugin-internals.test.ts b/tests/plugin-internals.test.ts
index 465a49a..5a2ee43 100644
--- a/tests/plugin-internals.test.ts
+++ b/tests/plugin-internals.test.ts
@@ -59,7 +59,7 @@ test('buildRunnerCommand injects dom setup for bun without tsx import', async ()
   assert.strictEqual(result.shouldHandle, true);
   assert.deepStrictEqual(result.command, [
     'bun',
-    '--import=/tmp/dom-setup.ts',
+    '--preload /tmp/dom-setup.ts',
     'tests/example.test.tsx',
     '--poku-react-metrics=1',
   ]);